After trying to do things "properly" and fitting canti brakes to the TriCross for a while I’ve given up and gone back to the original V-brakes. The Paul brakes I was after are indefinately delayed due to ordering problems, and the Avid I was using at the front squeeled badly and caused worrying amounts of fork judder.
The V brakes actually work a lot better, and the fork judder is much reduced. The only downside so far is that the Tektro levers aren’t as comfortable as the Cane Creek ones I was using with the cantis, I’ll see if I can get used to them a bit more though.
Time to start packing for camp.